Resolución de la ecuación paramétrica
Se da la ecuación con parámetro:
$$a x = a + 20$$
Коэффициент при x равен
$$a$$
entonces son posibles los casos para a :
$$a < 0$$
$$a = 0$$
Consideremos todos los casos con detalles:
Con
$$a < 0$$
la ecuación será
$$- x - 19 = 0$$
su solución
$$x = -19$$
Con
$$a = 0$$
la ecuación será
$$-20 = 0$$
su solución
no hay soluciones
Suma y producto de raíces
[src]
2
/ im(a)*re(a) (20 + re(a))*im(a)\ im (a) (20 + re(a))*re(a)
I*|--------------- - ------------------| + --------------- + ------------------
| 2 2 2 2 | 2 2 2 2
\im (a) + re (a) im (a) + re (a) / im (a) + re (a) im (a) + re (a)
$$i \left(- \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\operatorname{re}{\left(a\right)} \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{re}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\left(\operatorname{im}{\left(a\right)}\right)^{2}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
2
/ im(a)*re(a) (20 + re(a))*im(a)\ im (a) (20 + re(a))*re(a)
I*|--------------- - ------------------| + --------------- + ------------------
| 2 2 2 2 | 2 2 2 2
\im (a) + re (a) im (a) + re (a) / im (a) + re (a) im (a) + re (a)
$$i \left(- \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\operatorname{re}{\left(a\right)} \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{re}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\left(\operatorname{im}{\left(a\right)}\right)^{2}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
2
/ im(a)*re(a) (20 + re(a))*im(a)\ im (a) (20 + re(a))*re(a)
I*|--------------- - ------------------| + --------------- + ------------------
| 2 2 2 2 | 2 2 2 2
\im (a) + re (a) im (a) + re (a) / im (a) + re (a) im (a) + re (a)
$$i \left(- \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\operatorname{re}{\left(a\right)} \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{re}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\left(\operatorname{im}{\left(a\right)}\right)^{2}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
2
im (a) + (20 + re(a))*re(a) - 20*I*im(a)
----------------------------------------
2 2
im (a) + re (a)
$$\frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{re}{\left(a\right)} + \left(\operatorname{im}{\left(a\right)}\right)^{2} - 20 i \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
(im(a)^2 + (20 + re(a))*re(a) - 20*i*im(a))/(im(a)^2 + re(a)^2)
2
/ im(a)*re(a) (20 + re(a))*im(a)\ im (a) (20 + re(a))*re(a)
x1 = I*|--------------- - ------------------| + --------------- + ------------------
| 2 2 2 2 | 2 2 2 2
\im (a) + re (a) im (a) + re (a) / im (a) + re (a) im (a) + re (a)
$$x_{1} = i \left(- \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\operatorname{re}{\left(a\right)} \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 20\right) \operatorname{re}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\left(\operatorname{im}{\left(a\right)}\right)^{2}}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
x1 = i*(-(re(a) + 20)*im(a)/(re(a)^2 + im(a)^2) + re(a)*im(a)/(re(a)^2 + im(a)^2)) + (re(a) + 20)*re(a)/(re(a)^2 + im(a)^2) + im(a)^2/(re(a)^2 + im(a)^2)